arrival angle 中文意思是什麼

arrival angle 解釋
到達角
  • arrival : n. 1. 到達，抵達。2. 到達者；到達物。3. 出現，登場。4. 新生嬰兒。
  • angle : n 【英史】盎格魯人〈cf Angles〉。n 1 角，隅，角落；棱，嬗角。2 【數學】角，角位，角的度數。3 【機...
  1. Like the antitank missile can vertically attack front armor, or attack the weak part of armor with the big arrival angle to obtain the greatest depth of drill and approach angle about 90o

    模擬結果表明，本文提出的垂直打擊目標的變結構模糊末制導律，能實現對目標的精確打擊，滿足落角要求，充分發揮導彈的威力。
  2. ( 5 ) mfpic ( matched field postbeamformer interference canceller ) is proposed to cancel tow ship ' s noise. the advantage of mfpic is that it can be used to cancel the tow ship ' s noise for all arrival directions. furthermore, this new approach can be used to detect weak target, which has the same bearing angle of a strong interference

    （ 5 ）將平面波波束形成后干擾抵消與匹配場處理技術進行有機結合，探索性地提出了拖線陣聲納本艦干擾的匹配場抵消方法和匹配場處理后的干擾抵消方法，為本艦多途干擾抵消、水面強干擾抑制和水下弱目標檢測提供了新的技術途徑。
  3. The probability of survival is inversely proportional to the angle of arrival. large angle of arrival, small probability of survival and vice versa

    生存的機會跟接地姿態呈反比。愈大的接地姿態，愈小的生存機會，反之亦然。
  4. During this time, in the kiosk at my father s feet, were seated twenty palikares, concealed from view by an angle of the wall and watching with eager eyes the arrival of the boats

    就在這個時候，在水寨里，在我父親的腳下，已派上了二十個衛兵，躲在一個墻角里，用焦急的目光望著那些船的到來。
  5. Based on the facts that time of arrival ( toa ) of the first multipath signal is always most close to that of los propagation and angle of arrival ( aoa ) of the first multipath signal is not always most close to that of los propagation among all multipath signals in nlos propagation environment, a location algorithm is proposed to mitigate the influence of nlos propagation, which effectively reduces the feasible region of a ms in macrocells

    依據在非視距傳播環境下存在的以下兩個事實：第一，最先到達多徑信號的波達時間總是最接近直達波的波達時間。第二，最先到達多徑信號的波達方向並不一定最接近直達波方向。針對宏蜂窩系統，從有效減小移動臺可行域的角度，提出了一種減輕非視距影響的定位演算法。
  6. In the second chapter, a wideband mimo channel model with multiple - tap was integrated according to the angle of departure of the transmitting signal and its spread angle, the angle of arrival of the receiving signal and its spread angle, power azimuth spectra, doppler spectrum and the geometric construction of antenna array both sides of transmit and receive, on the basis of full research on the theories of space - time channel model proposed in the recent literature

    第二章在對最近文獻中提出的一些空時通道模型理論進行詳細研究的基礎上，根據發射信號的離開角及其擴展角、接收信號的到達角及其擴展角、功率方位譜、多普勒譜和收發兩端天線的拓撲結構，綜合了一個多抽頭的寬帶mimo通道模型。
  7. Meanwhile for arrival flights, since they were descending at a lesser angle 3 deg, they experienced the shear further away from the runway end and more gradually

    相反，到達的航機因以較小的角度3度下降，所以在距跑道末端較遠處才遇到較溫和的風切變。
  8. Abstract : a method named multi - times optimization is presented to solve the multi - specification optimization problem, which is difficult to solve using the variational optimal theory. in the method several demands are reduced to some sub - tasks. in every subtask a demand that can not be transformed into bound condition is taken as performance specification for optimazation, and the other demands are taken as bound conditions. by means of the method, the arrival time, number of turn, turn angle of the aircraft in the terminal area are selected as performance specification separately, and the general character of optimal flight route in the terminal area is given

    文摘:為了給飛機提供一條能滿足多種指標要求的最優飛行軌跡，針對變分最優理論難以求解多指標優化問題，提出了命名為多次優化的方法，即將多要求的優化任務分成先後相繼的多次任務，每次任務中選取一種不能邊界轉化的要求作為最優性能指標，而其餘要求轉化為邊界條件.利用這一方法以時間、轉彎次數、轉彎角度為最優性能指標給出了終端區最優飛行軌跡的一般特徵
  9. Angle - of - arrival fluctuation of light beam propagation in strong turbulence regime

    光束在強湍流區中傳播的到達角起伏
  10. Along with the wide arrival of the relation marketing and the experience economy, only from the enterprise ’ s angle to consider the cognition of the consumer and the static fixed - position of target - consumer, it already can not keep up with the rhythm of ages, the brand interaction dissemination from the consumer ’ s angle has become the most important tool to establish relations between brand and consumer. this is not only the need of enterprise participates in the international market competition with brand strategy, and is also inevitable to operate with marketing

    隨著體驗經濟的到來和關系營銷的盛行，僅從企業的角度來思考消費者的認知以及靜態的目標消費者定位已經有些跟不上時代的節奏，基於消費者視角的品牌互動傳播已成為建立品牌與消費者關系的最重要工具之一，這不僅是企業參與國際市場競爭的宏觀品牌戰略之需要，更是與企業生死攸關的市場營銷操作的必然，因此，基於消費者視角進行品牌的互動傳播研究自然意義深遠。
  11. Ben, in his long, lonely wanderings about the island, had found the skeleton - it was he that had rifled it ; he had found the treasure ; he had dug it up it was the haft of his pickaxe that lay broken in the excavation ; he had carried it on his back, in many weary journeys, from the foot of the tall pine to a cave he had on the two - pointed hill at the north - east angle of the island, and there it had lain stored in safety since two months before the arrival of the hispaniola

    長期孤身流浪在海島上的本葛恩發現了那副骨架，並把它身邊的東西搜掠一空。發現寶藏的也是他，他把金銀財寶都掘了出來坑裡留下的鎬頭斷柄就是他的，把財寶扛著從大松樹下搬到海島東北角雙峰山上的一個洞穴里。不知返了多少越，終于在伊斯班裊拉號抵達前兩個月把所有的寶藏都安全運到那裡。
  12. In 3g communication system, the most promising location method was the locating arithmetic based on the time of arrival and the time difference of arrival ( toa / tdoa ) of signal, or the angle of arrival of signal ( aoa ). however, either the arithmetic based on toa or that based on aoa was badly affected by the none line of sight ( nlos ) phenomenon

    在第三代移動通信系統中，最有前景的定位方式是基於信號到來時間/時間差（ toa / tdoa ）或信號到來角（ aoa ）的定位演算法。但不管是基於信號到來時間的演算法還是基於信號到來角度的演算法，定位信號的非視距傳播效應（ nlos ）都會對其造成嚴重的影響，在影響移動定位精度的諸多因素中nlos效應被公認為是最主要的因素。
  13. At the same time the case of coherent signal sources is also discussed and an algorithm for estimating 1 - d angle - of - arrival from under - sampled data is proposed in the thesis. moreover, a system of digital signal processing receiver using spatio - temporal undersampling technique is described and some practical problems are also discussed

    在理論分析的基礎上，結合某實際研究項目，論文給出了基於空時欠采樣條件下一種偵察測向數字信號處理機的硬體實現，並就工程實現中的一些問題進行了討論。
  14. Then, the application of array signal processing to the doa ( direction of arrival ) estimation of low angle target has been put emphasis upon

    然後，重點研究了應用陣列信號處理技術對低空目標進行doa （ directionofarrival ）估計。
  15. Then, base on the determine channel modeling methods, we present a frequency - selective mimo fading channel with von mises probability density function, which is used to characterize non - uniform angle - of - arrival caused by non - isotropic scattering. then we analyze partial cross correlation function of proposed model and proved the model theoretically

    然後，通過對其它多入多出通道模型的分析和對比，並基於確定性通道建模方法，建立了一種通用的頻率選擇性多入多出衰落通道模型，藉助「 vonmises 」概率密度函數，以描述非均勻散射體導致的非均勻本地來波方向分佈。
  16. The emitter location methods commonly include : angle of arrival ( aoa ) measurement, time - difference - of - arrival ( tdoa ) measurement and aoa together with tdoa measurement. this paper derive some important techniques and theories bearing upon passive location in this field. three kinds of passive location algorithm in three - dimensional ( 3 - d ) space are deduced based on that of 2 - d space. at the same time each performance is analyzed, each graph of geometric dilution of precession ( gdop ) is emulated for different station position, different measurement error, and different target height. accordingly some valuable academic and emulational results are obtained by myself, which will provide researches in this field with definite technical refrence. at the end of this paper, the passive location method of jtids ( joint tactical distribution systems ) is discussed, which is expected to enforce the tactical performance of jtids in the intending development

    本文汲取了該領域有關被動定位的重要技術和理論，在二維平面無源定位演算法的基礎上推導出了三維空間內的三種無源定位演算法，並對各自的定位性能進行了理論分析和計算機模擬，模擬出不同的布站、不同的測量誤差以及不同輻射源高度的情況下，三種定位方法各自對應的定位精度（ gdop ）分布圖，同時對各自的定位性能進行了改進處理，得出了一些有價值的理論和模擬實驗結果，這些結論可為今後在此領域的研究提供一定的技術參考。
分享友人
分享到 Line

分享到臉書